IRDFK 

IRDFK; I Really Don't Fucking Know. When you really don't fucking know.

Person 1: What are you doing to that Panda?
Person 2: IRDFK, but it seems to like it.

IRDFK by TheButcherRIP February 22, 2011

IRDFC 

I really don't fucking care.

idfc

Your opinion of my hair? IRDFC!

IRDFC by tomfarr June 20, 2009

idfk 

A semi-polite way of admitting that you don't have a clue. Abbreviation for "I don't f***ing know."

Boss:"What's wrong with the coffee machine?"
You:"idfk!"

idfk by Gumby January 20, 2003

idfk 

The abbreviation and more appropriate way of saying "I don't f**king know"

Wow, Idfk what that was.

idfk by Doctor Piggy June 3, 2016

idfka 

I don't fucking know anymore

ME: What are we going to do with out lives?
YOU: idfka

idfka by Niiceeeee April 7, 2016

idfkniki

A good tiktoker

idfkniki is a nice person that makes good tik toks

~Timur

idfkniki by Tibro July 15, 2021

idfkts 

A less-polite way to state that you don't know what someone is talking about.

"I don't fuckin know that shit!"

girl: "I was at lp the other day..."
guy: "Wait - lp?"
girl: "duh - La Pietra..."
guy: "well, idfkts... please continue..."

idfkts by kamisamaz February 23, 2009